The Design Of Wireless Sensor Network For Pipeline Monitoring System

Pipeline is a major tool for oil transportation.Once a leak or blockage occurs,it will cause huge economic losses.Therefore,it is extremely important to monitor the oil pipeline.Different with gas and water pipelines,oil pipeline has strict requirements on flow rate,temperature,and pressure of crude oil during transportation.A large number of sensors are required for monitoring,which is extremely costly.The monitoring network needs to be flexible and scalable.The existing monitoring network is difficult to meet these requirements.The wireless sensor network(WSN)eliminats the cost of wiring by connecting the network nodes wirelessly.The WSN can perform network expansion or self-healing without human operation.These characteristics make the WSN has a very high application value.There are two main problems in the application of WSN.The first one is the reliability,the disconnected communication link affect the normal operation of the network.The second one is the energy problem,the network cannot work for a long time because of the limited energy supply.Therefore,we carry out a series of work on the reliability and energy consumption of WSN.A layered architecture of WSN is proposed,which is divided into two stages:data collection and data transmission.During the data collection phase,the gateway node collects data from basic sensors.In the data transmission phase,the gateway nodes send data to the sink node in a multi-hop way.This paper analyzes the reliability and energy consumption requirements of the two phases separately.The network model is designed for these two phases,and the roles of various nodes in the model are clarified.Then we select different transmitter modules according to the types of node and the communication range.During the data collection process,we design a data collection scheme to improve the reliability of the monitoring area network and reduce the energy consumption of communication.Firstly,the scheme determines the maximum number of active state nodes that meets the requirements of communication rate.Secondly,we choose the nodes for communication to ensure that the nodes are evenly distributed.Finally,the route generation method is improved,which the route is generated by the minimum path method.The simulation results show that the data collection scheme proposed in this paper is generally lower than the comparison scheme in terms of energy consumption.During the data transmission process,the interference of the forward node signal leads to a decrease in link reliability,and the data consumption is excessive.To solve these problems,we design a long-distance linear wireless data routing protocol,PRO protocol.The PRO protocol guarantees high connectivity and high reliability of the entire network and reduces the energy consumption of data transmission in the network.Finally,the PRO protocol is compared with the existing REC routing protocol.The experimental results show that the PRO protocol consumes less time and energy than the REC protocol under the same reliability.In the case of two different communication node selections,the transmission time of the PRO protocol is 130.5ms and 100.58ms,and the energy consumption is 0.1415mJ and 0.241mJ respectively.In the corresponding case,the transmission time of the REC is 2894.65ms and 107.6ms.The energy consumption is 0.6083mJ and 0.25158mJ.The advantages are obvious.The implementation of the oil pipeline wireless monitoring network proposed in this paper can not only ensure high reliability in data collection and transmission,but also cut down energy consumption and transmission time compare with existing wireless data collection and data transmission schemes.The study plays a technical support role for the wide application of wireless sensor networks in oil pipeline detection systems.